Question

Помогите пожалуйста решить ;)

Answer 1

$1\frac{1}{9} y + \frac{7}{18}y - \frac{5}{27}y = 1 \frac{1}{4}$
$1 \frac{6}{54}y + \frac{21}{54}y - \frac{10}{54}y = 1 \frac{1}{4}$
$1 \frac{17}{54} = 1 \frac{1}{4}$
$y = 1 \frac{1}{4} : 1 \frac{17}{54}$
$y = \frac{5}{4} : \frac{71}{54}$
$y = \frac{5}{4} * \frac{54}{71}$
$y = \frac{270}{284}$
$y = \frac{135}{142}$